tdesktop/Telegram/SourceFiles/storage/serialize_document.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
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#include "storage/serialize_document.h"
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#include "storage/serialize_common.h"
#include "chat_helpers/stickers.h"
#include "data/data_session.h"
#include "auth_session.h"
namespace {
enum StickerSetType {
StickerSetTypeEmpty = 0,
StickerSetTypeID = 1,
StickerSetTypeShortName = 2,
};
} // namespace
namespace Serialize {
void Document::writeToStream(QDataStream &stream, DocumentData *document) {
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const auto version = 0;
stream << quint64(document->id) << quint64(document->_access) << qint32(document->date);
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stream << document->_fileReference << qint32(version);
stream << document->filename() << document->mimeString() << qint32(document->_dc) << qint32(document->size);
stream << qint32(document->dimensions.width()) << qint32(document->dimensions.height());
stream << qint32(document->type);
if (auto sticker = document->sticker()) {
stream << document->sticker()->alt;
switch (document->sticker()->set.type()) {
case mtpc_inputStickerSetID: {
stream << qint32(StickerSetTypeID);
} break;
case mtpc_inputStickerSetShortName: {
stream << qint32(StickerSetTypeShortName);
} break;
case mtpc_inputStickerSetEmpty:
default: {
stream << qint32(StickerSetTypeEmpty);
} break;
}
writeStorageImageLocation(stream, document->sticker()->loc);
} else {
stream << qint32(document->duration());
writeStorageImageLocation(stream, document->thumb->location());
}
}
DocumentData *Document::readFromStreamHelper(int streamAppVersion, QDataStream &stream, const StickerSetInfo *info) {
quint64 id, access;
QString name, mime;
qint32 date, dc, size, width, height, type, version;
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QByteArray fileReference;
stream >> id >> access >> date;
if (streamAppVersion >= 9061) {
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if (streamAppVersion >= 1003013) {
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stream >> fileReference;
}
stream >> version;
} else {
version = 0;
}
stream >> name >> mime >> dc >> size;
stream >> width >> height;
stream >> type;
QVector<MTPDocumentAttribute> attributes;
if (!name.isEmpty()) {
attributes.push_back(MTP_documentAttributeFilename(MTP_string(name)));
}
qint32 duration = -1;
StorageImageLocation thumb;
if (type == StickerDocument) {
QString alt;
qint32 typeOfSet;
stream >> alt >> typeOfSet;
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thumb = readStorageImageLocation(streamAppVersion, stream);
if (typeOfSet == StickerSetTypeEmpty) {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(0), MTP_string(alt), MTP_inputStickerSetEmpty(), MTPMaskCoords()));
} else if (info) {
if (info->setId == Stickers::DefaultSetId
|| info->setId == Stickers::CloudRecentSetId
|| info->setId == Stickers::FavedSetId
|| info->setId == Stickers::CustomSetId) {
typeOfSet = StickerSetTypeEmpty;
}
switch (typeOfSet) {
case StickerSetTypeID: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(0), MTP_string(alt), MTP_inputStickerSetID(MTP_long(info->setId), MTP_long(info->accessHash)), MTPMaskCoords()));
} break;
case StickerSetTypeShortName: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(0), MTP_string(alt), MTP_inputStickerSetShortName(MTP_string(info->shortName)), MTPMaskCoords()));
} break;
case StickerSetTypeEmpty:
default: {
attributes.push_back(MTP_documentAttributeSticker(MTP_flags(0), MTP_string(alt), MTP_inputStickerSetEmpty(), MTPMaskCoords()));
} break;
}
}
} else {
stream >> duration;
if (type == AnimatedDocument) {
attributes.push_back(MTP_documentAttributeAnimated());
}
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thumb = readStorageImageLocation(streamAppVersion, stream);
}
if (width > 0 && height > 0) {
if (duration >= 0) {
auto flags = MTPDdocumentAttributeVideo::Flags(0);
if (type == RoundVideoDocument) {
flags |= MTPDdocumentAttributeVideo::Flag::f_round_message;
}
attributes.push_back(MTP_documentAttributeVideo(MTP_flags(flags), MTP_int(duration), MTP_int(width), MTP_int(height)));
} else {
attributes.push_back(MTP_documentAttributeImageSize(MTP_int(width), MTP_int(height)));
}
}
if (!dc && !access) {
return nullptr;
}
return Auth().data().document(
id,
access,
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fileReference,
date,
attributes,
mime,
thumb.isNull() ? ImagePtr() : ImagePtr(thumb),
dc,
size,
thumb);
}
DocumentData *Document::readStickerFromStream(int streamAppVersion, QDataStream &stream, const StickerSetInfo &info) {
return readFromStreamHelper(streamAppVersion, stream, &info);
}
DocumentData *Document::readFromStream(int streamAppVersion, QDataStream &stream) {
return readFromStreamHelper(streamAppVersion, stream, nullptr);
}
int Document::sizeInStream(DocumentData *document) {
int result = 0;
// id + access + date + version
result += sizeof(quint64) + sizeof(quint64) + sizeof(qint32) + sizeof(qint32);
// + namelen + name + mimelen + mime + dc + size
result += stringSize(document->filename()) + stringSize(document->mimeString()) + sizeof(qint32) + sizeof(qint32);
// + width + height
result += sizeof(qint32) + sizeof(qint32);
// + type
result += sizeof(qint32);
if (auto sticker = document->sticker()) { // type == StickerDocument
// + altlen + alt + type-of-set
result += stringSize(sticker->alt) + sizeof(qint32);
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// + sticker loc
result += Serialize::storageImageLocationSize(document->sticker()->loc);
} else {
// + duration
result += sizeof(qint32);
// + thumb loc
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result += Serialize::storageImageLocationSize(document->thumb->location());
}
return result;
}
} // namespace Serialize